diff options
Diffstat (limited to 'include/llvm/Analysis/ScalarEvolutionExpander.h')
| -rw-r--r-- | include/llvm/Analysis/ScalarEvolutionExpander.h | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/include/llvm/Analysis/ScalarEvolutionExpander.h b/include/llvm/Analysis/ScalarEvolutionExpander.h index a519f93216b3..b4d727449fbe 100644 --- a/include/llvm/Analysis/ScalarEvolutionExpander.h +++ b/include/llvm/Analysis/ScalarEvolutionExpander.h @@ -77,9 +77,13 @@ namespace llvm { /// Phis that complete an IV chain. Reuse DenseSet<AssertingVH<PHINode>> ChainedPhis; - /// When true, expressions are expanded in "canonical" form. In particular, - /// addrecs are expanded as arithmetic based on a canonical induction - /// variable. When false, expression are expanded in a more literal form. + /// When true, SCEVExpander tries to expand expressions in "canonical" form. + /// When false, expressions are expanded in a more literal form. + /// + /// In "canonical" form addrecs are expanded as arithmetic based on a + /// canonical induction variable. Note that CanonicalMode doesn't guarantee + /// that all expressions are expanded in "canonical" form. For some + /// expressions literal mode can be preferred. bool CanonicalMode; /// When invoked from LSR, the expander is in "strength reduction" mode. The @@ -275,8 +279,16 @@ namespace llvm { /// Clear the current insertion point. This is useful if the instruction /// that had been serving as the insertion point may have been deleted. - void clearInsertPoint() { - Builder.ClearInsertionPoint(); + void clearInsertPoint() { Builder.ClearInsertionPoint(); } + + /// Set location information used by debugging information. + void SetCurrentDebugLocation(DebugLoc L) { + Builder.SetCurrentDebugLocation(std::move(L)); + } + + /// Get location information used by debugging information. + const DebugLoc &getCurrentDebugLocation() const { + return Builder.getCurrentDebugLocation(); } /// Return true if the specified instruction was inserted by the code |